結果
| 問題 | 
                            No.340 雪の足跡
                             | 
                    
| コンテスト | |
| ユーザー | 
                             gew1fw
                         | 
                    
| 提出日時 | 2025-06-12 15:51:03 | 
| 言語 | PyPy3  (7.3.15)  | 
                    
| 結果 | 
                             
                                TLE
                                 
                             
                            
                         | 
                    
| 実行時間 | - | 
| コード長 | 2,562 bytes | 
| コンパイル時間 | 170 ms | 
| コンパイル使用メモリ | 82,220 KB | 
| 実行使用メモリ | 181,576 KB | 
| 最終ジャッジ日時 | 2025-06-12 15:51:16 | 
| 合計ジャッジ時間 | 8,872 ms | 
| 
                            ジャッジサーバーID (参考情報)  | 
                        judge4 / judge2 | 
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| ファイルパターン | 結果 | 
|---|---|
| sample | AC * 5 | 
| other | AC * 14 TLE * 2 -- * 16 | 
ソースコード
import sys
from collections import deque
def main():
    input = sys.stdin.read().split()
    ptr = 0
    W = int(input[ptr]); ptr += 1
    H = int(input[ptr]); ptr += 1
    N = int(input[ptr]); ptr += 1
    max_cell = W * H - 1
    if max_cell == 0:
        print(0)
        return
    adjacency = [[] for _ in range(W * H)]
    for _ in range(N):
        M_i = int(input[ptr]); ptr += 1
        path = list(map(int, input[ptr:ptr + M_i + 1]))
        ptr += M_i + 1
        for j in range(M_i):
            B = path[j]
            next_B = path[j + 1]
            if B == next_B:
                continue
            w1 = B % W
            h1 = B // W
            w2 = next_B % W
            h2 = next_B // W
            if h1 == h2:
                if w2 > w1:
                    direction = 'east'
                    w_start = w1
                    w_end = w2
                    cells = []
                    for w in range(w_start, w_end + 1):
                        cells.append(w + h1 * W)
                else:
                    direction = 'west'
                    w_start = w1
                    w_end = w2
                    cells = []
                    for w in range(w_start, w_end - 1, -1):
                        cells.append(w + h1 * W)
            else:
                if h2 > h1:
                    direction = 'north'
                    h_start = h1
                    h_end = h2
                    cells = []
                    for h in range(h_start, h_end + 1):
                        cells.append(w1 + h * W)
                else:
                    direction = 'south'
                    h_start = h1
                    h_end = h2
                    cells = []
                    for h in range(h_start, h_end - 1, -1):
                        cells.append(w1 + h * W)
            for i in range(len(cells) - 1):
                u = cells[i]
                v = cells[i + 1]
                if v not in adjacency[u]:
                    adjacency[u].append(v)
                if u not in adjacency[v]:
                    adjacency[v].append(u)
    visited = [-1] * (W * H)
    queue = deque()
    start = 0
    end = W * H - 1
    visited[start] = 0
    queue.append(start)
    while queue:
        u = queue.popleft()
        if u == end:
            print(visited[u])
            return
        for v in adjacency[u]:
            if visited[v] == -1:
                visited[v] = visited[u] + 1
                queue.append(v)
    print("Odekakedekinai..")
if __name__ == "__main__":
    main()
            
            
            
        
            
gew1fw